Slurry Wall

7/22/2019 Slurry Wall

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SLURRY WALL

..

(Bentonite Slurry)

-

(SLURRY WALL)


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Bentonite Slurry for Trench Stabilization

- "Diaphragm Wall

- "Cutoff Wall"

- "Barrette Wall"


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.. 1914 - Slurry Wall

.. 1929 - Bentonite

Bentonite Slurry .. 1940

(Xanthakos, 1979)

.. 1948 -

Terminal Island

.. 1959 -

200,000

(Ikuta, 1974 )

SLURRY WALL

Slurry Wall

.. 2520 (Panel)

3-8 14

Sheet pile (,2524)

(Shaft)

Slurry Wall

Intertrade Slurry Wall

6 (18 )

SLURRY WALL


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Slurry Wall Cutoff

Wall 2

- Secant pile

Upstream cutoff wall Faced

slab

(After bay dam)

5

-

.. 2520 7

1 .

SLURRY WALL

Slurry Wall

1. - -

-

2. - - - - 3. - - 4. -

-

5.

-


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Slurry Wall


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/ Slurry Wall

1.

(TOP - DOWN)

(BOTTOM - UP)

Slurry Wall

2.

Slurry Wall

3.

Navajo Dam Slurry Wall

140 (Soletanche, 1993)

/ Slurry Wall


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4.

Slurry Wall

20

/ Slurry Wall

1.

2. Slurry Wall 3.

4.

/ Slurry Wall


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Secant Pile Wall


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JET GROUTING

WALL


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1.

2.

Slurry Wall


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1.

(Open Trenching)

1

( )= 0

F.S =4c

H( - f.

)

2

F.S. =2. . tan

-

f

f

( )c = 0

f a b w= k +

ka= = tan ( )2 45

2


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3

f

2

a b

2

w

2=

(l - m K m K m

n

) + +a2

mH

nH


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2. (Alternate Panels)

Kowalewski (1964)

(Arching Effect)

(yield)

l ABB'A'

A'B'C'

(Arching Effect)


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Piaskowski Kowalewski (1965)

(Ka)

hw

2. (Alternate Panels)


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Schneebeli (1964)

z

z

ns =.l

Ne

sin21 2 in

N = 1+sin1-sin

Slurry Wall

7.00 1.00

/.. = 4.0

Surcharge = 3.8 /..

c = 0 , = 30 , ' = 0.90


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3.


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SOIL-BENTONITE SLURRY WALL

2. Cement-bentonite

"Solidified bentonite slurry wall"10 30 ksc.


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3. Plastic-Concrete

Soil - bentonite (Mixing Plant)

Trimie pipe

1

Bentonite Slurry 400 - 500

Cement 100 - 200 .

1,500 .

C/W Ratio 0.2 - 0.3

1.8 - 2.1 /..


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4. Reinforced Concrete

(Earth Anchor) (Prestressing Tendons)

Diaphragm Wall


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Diaphragm Wall

Diaphragm Wall Panel 3

) Round Pipe Joint

) Steel Beam Joint) Key Joint


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Slurry Wall

1.

(Open trenching)

2.

(Alternate panels)


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-

1.

Soil-bentonite, Plasticconcrete, Concrete Cement-bentonite

2.


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Clamshell


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HydrofraiseInclinometer

Slurry Wall

-

-

- (End Product Specification)


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1. Slurry Wall


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2.


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3.

Factor of Safety


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4.

Slurry Wall

(Geotechnical

Instrumentation)

- Piezometer

- Inclinometer

- Settlement Points


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Settlement Point Slurry Wall

Slurry Wall


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Slurry Wall

-

-


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Muangnoicharoen N. et.al.(1984)


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Muangnoicharoen N. et.al.(1984) (

)

(Simplified Seepage Model)


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Working Berm


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Temporary Guide Wall


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Cable Suspended Clamshell

Chisel Star Type


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Stopend (Key)


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Stopend

Backfill Material

Tremie Pipe


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(Desanding)


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- -

()- 48QUD3353365642 II


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--()Piezometer ()Observation Well ().

N

PiezometerObservation Well

Test Pit

N

DIKE

--()PiezometerObservation Well

Test Pit


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N

--()PiezometerObservation Well

Test Pit

WET AREA

Seepage Analysis

Stability Analysis

Settlement Analysis

Instrumentation Recommendation

Drawing and Specification


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(SM)

2.

1.

...(k) 135.00 155.00 .. 130.. 8x10-5 2x10-4 cm/sec.


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CH-1 DH-1 DH-2 CH-2 CH-3 DH-3 DH-4 CH-4 CH-5 DH-5 CH-6 DH-6 CH-7 CH-8 DH-7 DH-8

500 644.55 1060 2000 3200 3500 4750 5600 5900 5992 6100 6365 6500 6750 6870 7312167

165

163

161

159

157

155

153 2.23E-04 1.27E-05

151 1.11E-04 3.53E-04 1.02E-03 5.96E-04

149 4.22E-04 2.62E-05 7.71E-04 4.13E-04

147 4.03E-04 4.30E-05 8.20E-04 4.39E-05

145 1.14E-04 6.10E-05 9.60E-05 9.20E-05 2.32E-03

143 2.25E-04 2.76E-04 1.39E-03

141 6.00E-06 1.35E-03 3.21E-05 4.39E-05

139 1.18E-04 2.84E-04 4.00E-06

137 1.43E-04

135 4.37E-04 1.79E-04 8.00E-06 3.74E-04

133 9.20E-05 7.60E-05

131 1.32E-04 1.44E-04 2.10E-04 4.78E-04

129 5.02E-05

127 1.31E-04 2.37E-05 1.05E-04 1.82E-04

125

123 8.20E-05

121

119 7.00E-06

..

STA.

()

Foundation Permeability

1.E-06

1.E-05

1.E-04

1.E-03

1.E-02

120 125 130 135 140 145 150 155 160 165 170

Elevation

k(cm/sec.)

CH-1

DH-1

DH-2

CH-2

CH-3

DH-3

DH-4

CH-4

CH-5

DH-5

CH-6

DH-6

CH-7

CH-8

DH-7

DH-8


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2.

(Test pit) 3 log-cycles 2x10-5 2x10-3 cm/sec. 23

167.8 DH-1 DH-2 DH-3 DH-4 DH-5 DH-6 DH-7 DH-8

. (.) 644.55 1060 3500 4750 5992 6365 6870 7312

167.05 0.75 0 0 4.94E-03 1.14E-02 7.23E-06 4.26E-03 0 2.87E-02

165.55 2.25 7.44E-06 0 7.45E-04 1.25E-02 2.23E-03 6.51E-06 3.25E-04 1.74E-02

164.05 3.75 7.25E-06 2.55E-06 2.95E-05 2.00E-03 7.21E-03 4.32E-06 2.45E-03 0

162.55 5.25 2.29E-03 9.01E-06 5.13E-04 3.08E-06 2.31E-06 4.03E-03 1.96E-03 0

161.05 6.75 2.60E-03 1.76E-04 1.65E-04 5.02E-03 1.81E-03 4.11E-04 6.07E-04 8.07E-06

159.55 8.25 1.84E-03 1.86E-04 4.33E-05 6.76E-06 6.70E-04 1.23E-03 1.86E-03 1.27E-05

158.05 9 .75 0 0 4 .02E-04 1 .44E-02 1 .44E-03 1 .39E-03 1 .93E-03 3.96E-04

156.55 11.25 2.60E-04 2.72E-04 2.34E-04 8.07E-03 2.54E-04 2.68E-03 1.70E-03 1.07E-05

155.05 12.75 1.67E-04 2.72E-04 3.54E-04 5.07E-03 1.54E-06 1.75E-03 4.44E-04 5.96E-04

153.55 14.25 2.00E-04 2.36E-04 5.61E-04 5.20E-03 1.42E-03 1.88E-03 7.45E-04 4.60E-04

152.05 15.75 1.25E-04 2.32E-04 5.89E-04 6.29E-04 6.12E-04 1.51E-03 1.64E-03 4.13E-04

150.55 17.25 1.55E-04 3.25E-04 3.52E-04 4.19E-04 1.87E-03 1.34E-03 1.02E-03149.05 18.75 0 5.73E-04 2.13E-06 5.25E-06 7.71E-04

147.55 20.25 3.56E-06 4.03E-04 2.62E-05 2.74E-04 8.29E-04 8.20E-04

146.05 21.75 2.64E-06 1.81E-04 1.01E-06 5.97E-04 2.32E-03 1.71E-05

144.55 23.25 6.50E-04 1.44E-04 3.68E-04 8.87E-04 1.39E-03

143.05 24.75 1.90E-03 1.01E-06

141.55 26.25 2.02E-03 2.35E-04 3.21E-05 4.39E-05

140.05 27.75 1.35E-03 9.44E-05

138.55 29.25 1.71E-06

137.05 30.75 1.18E-04 1.89E-06

135.55 32.25 0.00E+00

134.05 33.75 2.65E-04

132.55 35.25 6.81E-05

131.05 36.75 1.44E-04

129.55 38.25 5.02E-05

128.05 39.75

126.55 41.25

125.05 42.75

123.55 44.25

122.05 45.75

120.55 47.25

6.44E-04 1.92E-04 8.93E-03 5.39E-03 7.32E-04 1.43E-03 1.25E-03

STA

average


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EMBANKMENT PERMEABILITY

1.E-06

1.E-05

1.E-04

1.E-03

1.E-02

1.E-01

0 5 10 15 20 25 30 35 40 45

Depth from Dam Crest (m)

Permeability(cm./sec.) DH-1

DH-2

DH-3

DH-4

DH-5

DH-6

DH-7

DH-8

3.


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3 Cut-off Wall

0 .0 m . 1 5. 0 m . 25 .0 m . 5 0. 0 m .

+120

+140

+160

+180 Dam crest + 167.70 m. MSL.M.F.W.L. + 165.70 m. MSL .

N.H.W.L. + 162.00 m. MSL .

Clayey Silt and Sandy Silt

Sandstone

Cut-off Wall

-120 -100 -80 -60 -40 -20 0 20 40 60 80 100

- -

- -


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11 x 10-6Plastic Concrete(Slurry Wall)

11 x 10-2Rock Toe Drain

11 x 10-2Filter

757 x 10-4Random Zone(Zone2)

757 x 10-4Core Zone(ZoneI)

105 x 10-4Soil Foundation

102 x 10-4Rock Foundation

( kx:ky)

kx,(cm/s)

Equipotential Lines Vector

kx = 75ky

2.7

200e-0

05

1.8

273e-005

4.2

759e-005

Distance,m.

0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240

Elevation,m.

40

50

60

70

80

90

100

110

120

130

140


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Slurry Wall

3Slurry Wall :

Slurry Wallkx = 75ky

Distance,m.

0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240

Elevation,m.

40

50

60

70

80

90

100

110

120

130

140

Equipotential Lines Vector D/S Chimney Filter

Slurry Wall

kx = 75ky

88

90

9 2 9

49 6 9

8

100

102

104

106

11011

2

1.3

724e-005

5.3

499e-007

1.2

680e-005

Distance,m.

0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240

Elevation,m

.

40

50

60

70

80

90

100

110

120

130

140


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86.0%1.7%32.0%

6.36E-0711.32E-055.35E-071.37E-05Cut-off Wall(Slurry Wall)

3

98.1%118.4%111.0%

8.71E-0761.53E-053.22E-054.75E-05Internal Drain( D/S Filter)

2

100.0%100.0%100.0%

8.67E-07221.56E-052.72E-054.28E-051

(. /)(.

)

(.././.)

3

1

Plastic Cut-off Wall

150

140

130


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Plastic Cut-off Wall

150

140

130

Documents

Slurry Wall